2729147

Information

• Patent Grant
• 2729147

• References
• Source

• Patent Number

  2,729,147

• Date Filed

  Not available

• Date Issued

  Tuesday, January 3, 1956
  69 years ago

• CPC

  • D21F1/0009 - Regulating the freeness of the pulp

• US Classifications

  • 162 - Paper making and fiber liberation